I was thinking he will bw tweaked a bit to be a playable because that power gain is too slow. But let's wait for the hands-on report after someone test him (maybe that's the reason for a preview bundle?).
Also because in the game files, Megatronus has a 'relic of order' sig which says he copies all buffs from and gives all debuffs to the opponent when filling a bar with x% chance. Abandoned plot?